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公开(公告)号：US20150291488A1
公开(公告)日：2015-10-15
申请号：US14439249
申请日：2013-10-29
申请人： SHELL OIL COMPANY
摘要： The invention removes oxygenate from an olefin rich gas stream, the process comprising: (a) reacting an oxygenate, in a reaction zone in the presence of a molecular sieve catalyst, at a temperature from 350 to 1000° C., to produce an effluent stream, comprising at least oxygenate, olefin, water and acidic by-products; (b) cooling the effluent stream and contacting it with a first aqueous stream in a quench zone to produce an aqueous stream and an olefin rich gas stream; (c) compressing the olefin rich gas stream in one or more compressors in series to produce a compressed gas stream, (d) cooling the compressed gas stream and separating condensed material from said gas stream after each of the one or more compressors.
摘要翻译： 本发明从富烯烃气流中除去含氧化合物，该方法包括：（a）在分子筛催化剂存在下，在反应区中，在350-1000℃的温度下使含氧化合物反应，以产生流出物 至少包含含氧化合物，烯烃，水和酸性副产物; （b）冷却流出物流并将其与骤冷区中的第一含水流接触以产生含水物流和富烯烃气流; （c）串联压缩一个或多个压缩机中的富烯烃气流以产生压缩气流，（d）冷却压缩气流，并在每个一个或多个压缩机之后从所述气流中分离冷凝材料。
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公开(公告)号：US09828305B2
公开(公告)日：2017-11-28
申请号：US14439267
申请日：2013-10-29
申请人： SHELL OIL COMPANY
CPC分类号： C07C1/20 , C07C4/06 , C10G45/08 , C10G45/12 , C10G65/12 , C10G2300/1011 , C10G2300/104 , C10G2300/1044 , C10G2300/1051 , C10G2300/1059 , C10G2300/1081 , C10G2300/1085 , C10G2400/02 , C10G2400/20 , C10G2400/22 , Y02P30/42 , C07C11/02
摘要： The invention provides a process for the preparation of an olefinic product, comprising: (a) reacting an oxygenate feedstock, in a reaction zone in the presence of a molecular sieve catalyst, at a temperature from 350 to 1000° C., to produce a reaction effluent stream, comprising at least oxygenate, olefin, water and acidic by-products; (b) cooling the reaction effluent stream by means of an indirect heat exchange to a temperature greater than the dew point temperature of reaction effluent stream; (c) further rapidly cooling the reaction effluent stream to a temperature lower than the dew point temperature of the reaction effluent stream by direct injection of an aqueous liquid into the reaction effluent stream, to form a first quench effluent stream; and (d) separating the first quench effluent stream into a first liquid quench effluent stream and a first gaseous quench effluent stream, comprising the olefinic product.
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公开(公告)号：US09902660B2
公开(公告)日：2018-02-27
申请号：US15103006
申请日：2013-12-13
申请人： SHELL OIL COMPANY
CPC分类号： C07C1/20 , B01D17/045 , C07C2529/00 , C07C2529/40 , C07C2529/70 , C10G3/42 , Y02P30/42 , C07C11/04 , C07C11/02 , C07C11/06
摘要： The invention provides a process for the preparation of an olefinic product, the process comprising the steps of: (a) reacting an oxygenate feedstock, comprising oxygenate, in an oxygenate reaction zone in the presence of a catalyst comprising a molecular sieve, at a temperature in the range of from 350 to 1000° C., to produce a reaction effluent stream, comprising at least oxygenate, olefin, water and acidic by-products; (b) cooling the reaction effluent stream by means of an indirect heat exchange to provide a cooled reaction effluent stream at a temperature greater than the dew point temperature of reaction effluent stream; (c) passing the cooled reaction effluent stream into a quench tower and contacting the cooled reaction effluent stream with a first aqueous liquid in the presence of at least one set of quench tower internals, to produce a quench tower gaseous stream comprising the olefinic product and a quench tower liquid stream comprising condensed material; and (d) separating the quench tower liquid stream into a hydrocarbon quench tower liquid stream and an aqueous quench tower liquid stream in the presence of one or more coalescers.
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公开(公告)号：US20150291484A1
公开(公告)日：2015-10-15
申请号：US14439292
申请日：2013-10-29
申请人： SHELL OIL COMPANY
摘要： The invention provides a process for preparing an olefin, comprising: (a) reacting an oxygenate, in a reaction zone in the presence of a molecular sieve catalyst, at a temperature from 350 to 1000° C., to produce a effluent stream, comprising at least oxygenate, olefin, water and acidic by-products; (b) cooling the reaction effluent stream by an indirect heat exchange to a temperature greater than the dew point temperature of effluent stream; (c) further rapidly cooling the effluent stream to a temperature lower than the dew point temperature of the effluent stream by direct injection of an aqueous liquid into the effluent stream, to form a quench effluent stream; and (d) passing the quench effluent stream into a quench tower and contacting the quench effluent stream with a second aqueous liquid in the presence of at least one set of internals, to produce a quench tower gaseous stream comprising the olefin.
摘要翻译： 本发明提供了一种制备烯烃的方法，包括：（a）使反应区中的含氧化合物在分子筛催化剂存在下，在350至1000℃的温度下反应，以产生流出物流，其包含 至少含氧化合物，烯烃，水和酸性副产物; （b）通过间接热交换将反应流出物流冷却至大于流出物流的露点温度的温度; （c）通过将水性液体直接注入流出物流中，将流出物流进一步快速冷却至低于流出物流的露点温度的温度，以形成骤冷流出物流; 和（d）将骤冷流出物流送入淬火塔并在至少一组内部存在下使骤冷流出物流与第二含水液体接触，以产生包含该烯烃的骤冷塔气流。
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公开(公告)号：US09878963B2
公开(公告)日：2018-01-30
申请号：US14655345
申请日：2013-12-24
申请人： SHELL OIL COMPANY
摘要： The invention relates to process for the preparation of an olefinic product comprising ethylene and/or propylene from an oxygenate, the process comprising the following steps: a) an oxygenate conversion step wherein a gaseous effluent comprising olefins and a water-soluble oxygenate is obtained; b) separation of water from the effluent; c) compression of the effluent; d) acid gas removal from the compressed gaseous effluent obtained in step c), wherein the compressed gaseous effluent is treated with a caustic solution in a caustic tower; and e) separating the olefinic product from the gaseous effluent treated in step d), wherein, in a final stage in the caustic tower, water-depleted compressed gaseous effluent is treated with a water stream that is essentially free of water-soluble oxygenate and a spent water stream comprising caustic and water-soluble oxygenate is obtained, which spent water stream is withdrawn from the process.
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公开(公告)号：US09828312B2
公开(公告)日：2017-11-28
申请号：US14439249
申请日：2013-10-29
申请人： SHELL OIL COMPANY
摘要： The invention removes oxygenate from an olefin rich gas stream, the process comprising: (a) reacting an oxygenate, in a reaction zone in the presence of a molecular sieve catalyst, at a temperature from 350 to 1000° C., to produce an effluent stream, comprising at least oxygenate, olefin, water and acidic by-products; (b) cooling the effluent stream and contacting it with a first aqueous stream in a quench zone to produce an aqueous stream and an olefin rich gas stream; (c) compressing the olefin rich gas stream in one or more compressors in series to produce a compressed gas stream, (d) cooling the compressed gas stream and separating condensed material from said gas stream after each of the one or more compressors.
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公开(公告)号：US09828306B2
公开(公告)日：2017-11-28
申请号：US14439292
申请日：2013-10-29
申请人： SHELL OIL COMPANY
摘要： The invention provides a process for preparing an olefin, comprising: (a) reacting an oxygenate, in a reaction zone in the presence of a molecular sieve catalyst, at a temperature from 350 to 1000° C., to produce a effluent stream, comprising at least oxygenate, olefin, water and acidic by-products; (b) cooling the reaction effluent stream by an indirect heat exchange to a temperature greater than the dew point temperature of effluent stream; (c) further rapidly cooling the effluent stream to a temperature lower than the dew point temperature of the effluent stream by direct injection of an aqueous liquid into the effluent stream, to form a quench effluent stream; and (d) passing the quench effluent stream into a quench tower and contacting the quench effluent stream with a second aqueous liquid in the presence of at least one set of internals, to produce a quench tower gaseous stream comprising the olefin.
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公开(公告)号：US20150299067A1
公开(公告)日：2015-10-22
申请号：US14439267
申请日：2013-10-29
申请人： SHELL OIL COMPANY
CPC分类号： C07C1/20 , C07C4/06 , C10G45/08 , C10G45/12 , C10G65/12 , C10G2300/1011 , C10G2300/104 , C10G2300/1044 , C10G2300/1051 , C10G2300/1059 , C10G2300/1081 , C10G2300/1085 , C10G2400/02 , C10G2400/20 , C10G2400/22 , Y02P30/42 , C07C11/02
摘要： The invention provides a process for the preparation of an olefinic product, comprising:(a) reacting an oxygenate feedstock, in a reaction zone in the presence of a molecular sieve catalyst, at a temperature from 350 to 1000° C., to produce a reaction effluent stream, comprising at least oxygenate, olefin, water and acidic by-products; (b) cooling the reaction effluent stream by means of an indirect heat exchange to a temperature greater than the dew point temperature of reaction effluent stream; (c) further rapidly cooling the reaction effluent stream to a temperature lower than the dew point temperature of the reaction effluent stream by direct injection of an aqueous liquid into the reaction effluent stream, to form a first quench effluent stream; and (d) separating the first quench effluent stream into a first liquid quench effluent stream and a first gaseous quench effluent stream, comprising the olefinic product.
摘要翻译： 本发明提供了制备烯烃产物的方法，包括：（a）在分子筛催化剂存在下，在350-1000℃的温度下使反应区中的含氧原料反应，以产生 反应流出物流，至少包含含氧化合物，烯烃，水和酸性副产物; （b）通过间接热交换将反应流出物流冷却至大于反应流出物流的露点温度的温度; （c）通过将水性液体直接注入反应流出物流中，将反应流出物流进一步快速冷却到低于反应流出物流的露点温度的温度，形成第一骤冷流出物流; 和（d）将第一骤冷流出物流分离成第一液体骤冷流出物流和包含烯烃产物的第一气态骤冷流出物流。
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